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(A) Pyloric tumor (asterisk) invading from serosa without mucosal involvement. (B) Tumor cells within the subserosal, intramuscular, and submucosal lymphovascular channels (black arrows). (C) Hepatic artery lymph node containing metastatic foci (asterisks). (D) P53 immunohistochemical staining confirms low-grade papillary serous carcinoma of the ovary.
